Motor fuel selector assembly



Aug. 4, 1953 Filed Nov. 21, 195o 2 Sheets-Sheet 1 Sv w vb.

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4BY QAM d ug- 4, 1953 E. L.. HAYNIE MOTOR FUEL SELECTOR ASSEMBLY 2 Sheets-Sheet 2 Filed Nov. 21, 1950 E ar/ L. Hayn/'e INVENTOR. BY @um WMF/@Zw Patented Aug. 4, 1,953

Earl L. Haynie, Berwyn, Ill.

Application November 21, 1950, Serial No. 196,830

2 Claims. (Cl. 15S-36.3)

This invention relates to improvements in internal combustion engine attachments.

An object of `this invention is to provide an improved valve assembly in a multi-fuel system for an engine, the improved valve assembly serving the purpose of selecting the proper type 'or grade of fuel by electrical means.

Ancillary objects and features of importance will become .apparent in thefollowing descripltion of the illustrated form of the invention.

In the drawings: i

Figure 1 isgakdiagrammatic view showing one multi-fuel system for an internal combustion engine wherein the improved valve assembly is disposed;

Figure 2 is a perspective view of the improved valve assembly;

is a solenoid (Figures 3 5). Interposed -in the wire 50 is a switch 56 which is adapted to be actuated by the choke and idle linkage of the carburetor, this switch being appropriately located. A suction responsive switch 58 is operatively connected to the intake manifold 22 so that suction beyond a predetermined value causes the switch to operate. Therefore, the switch '56 may be so arranged that at idling speeds or while choking, the switch is closed,

thereby causing operation of the selective valve Figure 3 is a sectional view taken substantially on the line 3--3 of Figure 2; v

Figure 4 is a sectional view taken substantially on the line 4--4 of Figure 2 and in the direction of the arrow;

Figure 5 is a sectional view similar to that 0f Figure 4 the elements being in a second position of adjustment;

Figure 6 is a perspective view of the valve members connected together and held in spaced relationship by means of a rigid connection; and

Figure 7 isa sectional view of a suction operated valve used in the invention.

The present invention includes subject matter similar to that disclosed in my copending application, Serial No. 196,829, led on November 21, 1950.

Attention is invited first to Figure l. There is a fuel tank lll which is adapted to contain one type or grade of fuel. The fuel tank I2 is adapted to contain a second grade or type of fuel. Conduits I4 and I6 extendfrom outlets of the tanks vIll and l2 and standard valves |18 land 28 are interposed in the conduits I4 and I6' for manual control .of the fuel owing from the tanks.

A standard intake manifold 22 is illustrated in this figure and has -a carburetor 24 located interposed therein is connected to the inlet of the carburetor.

The wiring appurtenant to the assembly includes an electrical conductor 32 extending from the source 34 and having the standard ignition switch 36 therein: A wire 38 extends from the stan-dard ignition switch and connects to the selector switch 40. I'his selector switch has a switch arm 42 arranged to engage the contacts 43, -44 and 46, respectively. When the switch arm engagesfthe contact 43 selectivity of operation of the selector valve assembly 48 is obtained inasmuch as the wire 50 extends from the contact 43' and is attached to a contact of the electric motor 54, forming a part of the selector e thereon. A vIpipe, 26 having the fuel pump 2845 rvalve assembly. The preferable type of motor 48 and permitting only the better` grade of fuel to now to the carburetor. The same is true at idling speeds when the suction in the intake manifold is high. The switch 58 will lremain closed causing only the better grade fuel to flo-w into the carburetor. At this time the signal lamp 58, appropriately wired in the circuit is illuminated.

`As ydisclosed in Figure 7 there is va switch 58 operatively connected with the intake manifold 22 of the engine whereby suction of the manifold is caused to actua-te the diaphragm A of the switch. The construction is such that the switchl 58 will remain closed, causing only the better grade of fuel to flow into the carburetcr, Vat idling speeds when the suction in the intake manifold is high and will open when the suction decreases to allow a lower grade of fuel to be used, but will close again at such time thatthe suction is even lower.

At low vacuum the diaphragm A will expand allowing the center stem l to force the lower contact nger 2 to engagethe bottom end of the terminal 3. The adjustment screw 4, carried by the insulating partition 5 is used to set the` lower contact nger to make Contact at" the desired point of low vacuum. A spring may be used in conjunction with the diaphragm if found necessary in order to insure that the diaphragm will expand properly. l

The diaphragm contacts as the vacuum increases in the intake manifold 22 due to the tting connecting the intake manifold with the switch casing. This draws the center stem l down thereby pulling the upper contact finger 6 down to engage the upper end of the terminal 3 when the vacuum increases to a desired point. The adjustment screw l connecting the center post and the upper contact 6 is used to adjust the upper contact finger to make contact at the desired point of high vacuum.

The electrical circuit illustrated in Figure 1 is thereby controlled.

The contact ngers 2 and 6 normally will not touch the terminal 3 due to the tension of the 'fingers unless actuated by the diaphragm A When the switch arm 92 is moved to the contact lid, the circuit is open. When the switch arm 42 is moved itc engage the l,contact A6, due to the :the switches 56 and 59 tare 'bypassed. Hence, the selective valve motor 54 will be energized holding the selective valve assembly 48 in such condition that the better grade of fuel only will 110W to the carburetor.

In operational summation, when the arm 42 is in engagement with the contact 93, there 'is automatic selective valve .4:8 control. When the switch arm l2 is moved ofi the contact 4 3 but prior to engagement .with the contact 56, the selector valve assembly 48 is inoperative. When the switch arm $2 engages the contact -lljpr'emium fuel ilows through the valve assembly 48.

As disclosed one fuel 4pump 28 is required. The multi-fuel pump system -as disclosed in Patent N0.-2,16B ,'241'may be used as an alternative. In that patent there is a single fuel pum-p for one tank and the other 4tank has an individual fuel v DllmP- Attention is now invited Yto the specific valve .lsembly 48. There is a case 90, preferably of tubular stock, said caseihaving open ends. `There is a pair of inlets at the opposite open ends of said case, The inlet 6*?. has the conduit t5 arranged therein, while the inlet S4 has the obnduit 1,4 arranged in communication therewith.

'Une Aconduits 1.4 and i6 Aare connected to length-s'y o; pipes 96.511161 68 bym-sans of standard couplings 'i9 and '52. Valve seats '14 and i6 are formed .in the lengths 6 6 and 68 of pipe, each seat accommodating a valve member 'it and 80, resneotivelv- As .disclosed .Figure 6, the valve members 1.8 and 8B are held in fixed spaced relationship by means of the rods 82 and 89, one end of each being ked ,directly to the valve member E9 and Lthe other .end of .each being xed to a disk or plate B which is, in turn, fixed to the valve membei' 18. The function .Oi the disk 86 is to constitute a seat for the spring 8,8. `This spring bears against the inner end o f the length of pipe 5,6 :and serves the purpose oi yieldingly opposing the 4operation of the valve members and of retaining the Valve members 'I8 unseated when the solenoid ,is inoperative.

The space between the valve members constitutes -a valve chamber and a mixing,r Chamber 99,. The disk 85 may be made .of a size -Sufen'ly small to allow free flow 0f fuel thereby or may be onertured or notched as et .92 in order to permit the passage of fuel which enters the inlet 62, to ness into the outlet A94;- 'lhis outlet is Ain oomrngriieation with Athe ehamberll and has the pipe 2t communicating with it. beine held .in place on the outlet member .9b by means voi a, standard coupling 98.

The .solenoid is provided with .a ooi'l 100 mechanically held in place around the soft iron core ,192, this .Core vlien/ing a link 94 connected to it, The link is secured to the core by means of a ball swivel connection IUS and has its lower end secured to one end of the crank I l0. The opposite ,endV of the crank is held by means of a pivot pin, fixed to the rods 82 and B4 near one pair of ends thereof. The crank is pivoted intermediate its ends to a bracket i Ill, which is fixed in the chamber 90, through the medium of a link l I6.

lin order to hold the ground wire IIB of the system fixed properly and in order to hold the wire 50 in proper relationship to the solenoid, a contact block i229 of insulating material is riveted to the solenoid casing |22.

In operation of the valve assembly the following takes place: The fuel pump applies a suction to .the outlet-.member 9.6. When ,thesolenoid Ais actuated, the core |192 is lifited thereby drawing the crank I l0 upwardly in a constrained motion due to the presence of the link H6. This causes the valve member 18 to seat firmly in the yalyeseat M, .closing the inlet 62- and permitting .n0 .flow through the conduit I6. However, since the valve member 18 is rigidly fixed to the valve member .80 and 'the' valve members have been moved in this manner, the inlet 64 is opened, permitting fuel to ilowthrough the chamber and outlet 94.

The :above rnovement Aof `'the valve members is opposed by the spring 88. Therefore, when Athe `solenoid is no longer energized ,the spring 89 returns the valve Jmembers ito such position `that the inlet 62 lis 4opened Aand the inlet 94 vclosed 'by their respective valve members.

Having described 'the invention, what 'is claimed vas `new is:

'-1. In an engine fuel Asupply .assembly which includes la carburetor, a fuel pump connected thereto by means of a pipe, a lfirst land a Isecond `fuel supply tank, and Aconduits extending from each tan-k, together with la selective valve -co'nl `nectirlg said conduits and a pipe leading from the selective valve to the fuel pump, means for operating ysaid selective valve comprising a selector switch having a wire adapted to connect the switch Ato an ignition system for an engine, a suction responsive switch, an electrical conductor extending vfrom said selector switch 'to said suction 'responsive switch, said suction responsive switch being adapted to operatively connect with the intake manifold of an engine for Iactuation in response `to vacuums above and below a predetermined range, said suction responsive switch having an electrical conductor extending therefrom, an electric motor arranged to actua/te said selective valve and mechanically connected therewith', and said motor connected for operation with the 1ast-mentioned electrical conductor, and means responsive to .operation of said selector switch and connected with said selecf tor switch and said motor -for Aby-passing said .suction responsive switch.

2. The combination of claim 1, and a switch adapted to be operated b y av standard choke and idle linkage `velectrically connected with theiirst- .mentioned electrical conductor extending from said selector switch in .parallel withsaid suction -responsive switch to control the electrical .operation of saidmotor.

EARL L. HAYNIE.

'References Cited in the le of this patent UNITED STATES 'PATENTS Number 

